Bonus Buy Slots UK – Slots Where You Can Buy Bonus

Bonus Buy slots in the UK are a special category of online slot games that allow players to purchase instant access to the bonus feature instead of waiting for it to trigger naturally. Since the bonus round is where the highest payout potential usually lies, with features such as wilds, multipliers, re-spins and enhanced mechanics many players prefer this fast track option.

In this guide, we’ll explain exactly how Bonus Buy slots work, highlight the best bonus buy casinos that offer them to UK players.

Bonus Buy Slots Overview

Bonus Buy slots, sometimes called Buy Feature or Instant Feature slots, are a modern style of online slot game that let players pay a fixed fee to unlock the bonus round instantly, rather than relying on chance through base game spins. Since bonus rounds are where most slots hide their biggest wins, this mechanic is especially appealing to players who prefer high volatility action and direct access to the best features.

Slots where you can buy the bonus feature have become hugely popular across both UK and international casinos, often ranking alongside Megaways titles as some of the most played slots online. What makes Bonus Buy slots so compelling is that every developer implements the mechanic differently: some offer enhanced free spins, others include super-charged multipliers, expanding wilds, sticky symbols or multiple buy-in tiers. In many titles, the maximum win potential is only achievable within the purchased bonus feature, which adds to their appeal.

The Origin of Bonus Buy Slots

The concept of paying to enter a bonus feature round emerged around 2017-2018, initially gaining traction across European online casinos. As slot streamers began showcasing their massive wins on YouTube and Twitch, the demand for instant bonus access skyrocketed. High volatility fans, in particular, embraced the mechanic because it removed long periods of base game spinning and replaced them with direct, high risk, high reward gameplay.

Studios That Helped Shape the Bonus Buy Mechanic

Big Time Gaming (BTG)

• Legacy: Famous for creating Megaways, BTG built the foundation for many modern slot mechanics.
• Influence: While not the first to launch Bonus Buy slots, their focus on volatility and innovation accelerated the trend.
• Key Titles:
  • Extra Chilli Megaways — One of the earliest mainstream Bonus Buy slots
  • White Rabbit Megaways — Introduced purchasable extended spins

Push Gaming

• Role: Among the earliest European studios to widely introduce Buy Features.
• Design Focus: Reduce the long wait for bonus rounds and increase player engagement.
• Notable Titles:
  • Jammin’ Jars 2 — Introduced Bonus Buy options
  • Razor Shark — A celebrated early Bonus Buy hit

NoLimit City

• Reputation: Known for ultra-high volatility and daring themes.
• Innovation:
  • Multiple Bonus Buy tiers
  • “Super Bonuses” guaranteeing enhanced features
• Examples:
  • San Quentin xWays
  • Deadwood, Tombstone RIP

Pragmatic Play

• Strength: Made Bonus Buys mainstream by adding them to almost every major release.
• Approach: Offers Buy Features between 50x–200x stake, making them accessible to casual players and high rollers.
• Popular Games:
  • Sweet Bonanza
  • Gates of Olympus
  • Sugar Rush

Other Important Contributors

• Relax Gaming: Revolutionised high-volatility Bonus Buys with Money Train 2 and later entries.
• Hacksaw Gaming: Known for multi-tier Bonus Buys in Wanted Dead or a Wild, Chaos Crew, and others.
• Red Tiger: Introduced early experimental buy-style mechanics.

Top 4 Casinos With Buy Feature Slots

Britsino Casino – New UK Bonus Buy Casino

Britsino Casino has emerged as one of the most impressive new online casino sites, offering a massive collection of over 11,000 games, including one of the largest selections of Bonus Buy slots UK available today. Players can instantly access high-volatility free spin rounds and feature buys, with standout titles such as Sweet Bonanza, San Quentin xWays, Sugar Rush, and many exclusive games you won’t find on UKGC platforms.

Britsino doesn’t stop at slots. The casino hosts a polished live casino, a strong lineup of table games, and a variety of instant win mini games, all powered by industry leading developers including Pragmatic Play, Nolimit City, NetEnt, Evolution Gaming, and more.

Players also benefit from fast, flexible banking options, including credit cards, popular cryptocurrencies, and apple pay, with many withdrawals processed the same day. Combined with its generous welcome bonuses, weekly reloads, cashback deals and frequent promotional offers, Britsino is quickly becoming one of the top-rated for Brits looking for slots where they can buy the bonus.

Gambiva Casino – High Roller Casino With 10,000+ Buy Feature Slots

Gambiva Casino is a brand new non UK casino which welcomes high rollers to an elegant site with a huge collection of Bonus Buy slots UK, giving players the freedom to activate free spins and bonus rounds instantly in crowd favourites such as Gates of Olympus, Money Train 4, Big Bass Bonanza, and hundreds of other high-volatility titles. With full slot features, higher bet limits, and no UKGC restrictions, Gambiva delivers the kind of gameplay that slot fans miss on UK-licensed sites.

Gambiva also stands out for its generous promotions, offering welcome bonuses of up to 600%, regular cashback offers, reload bonuses, and ongoing seasonal deals. With its stylish design, flexible payment options, and huge game variety, Gambiva is must try slot site.

Fortunica – Best Casino For Buy Free Spins Slots

Fortunica is a new bonus buy casino which spoils UK players to a massive selection of Bonus Buy slots UK. Fortunica lets players enjoy the complete version of their favourite slots, including the ability to purchase bonus rounds instantly rather than waiting for them to trigger through standard play.

With access to high-volatility hits like Money Train 4 and Dead or Alive 2, plus an array of fresh Megaways titles, Fortunica’s slot collection is tailor made for players who enjoy fast action, generous bonuses and the potential for huge payouts from their high RTP games. 

Bet Ninja – Top Rated Casino With Buy Feature Slots

Bet Ninja is a new UK slot site which has been voted the best new online casino of 2025 by British players. Its high ratings come from its huge variety of 11,000+ games, high RTP percentages up to 99.55%, outstanding banking options and fast withdrawals. If you’re looking for new and exclusive slots where you can buy bonus, then look no further!

Early Bonus Buy Slot Releases

Below are some of the earliest and most influential Bonus Buy slot titles that helped shape the mechanic into what it is today, each contributing something unique to the evolution of instant feature gameplay.

1. Vikings Unleashed Megaways  (Blueprint Gaming, 2018)

Mechanic: Buy Free Spins + Gamble Feature
One of Blueprint’s first major games to introduce purchasable free spins. Players could buy the bonus round and then gamble their way to extra spins or higher multipliers, adding a risky but rewarding layer of strategy.

2. The Dog House (Pragmatic Play, 2019)

Mechanic: Sticky Wild Bonus Buy
While the original version popularised sticky-wild bonus rounds, its Megaways sequel later incorporated Bonus Buy options. The early success of this title helped Pragmatic Play push feature buys into nearly all future releases.

3. Fire in the Hole xBomb (NoLimit City, 2021)

Mechanic: Variable Buy Options
This slot refined the concept of tiered Bonus Buys. Players could choose between multiple buy levels, each offering different volatility and bonus enhancements. This flexible system became a trademark of NoLimit City’s high risk gameplay.

4. Chaos Crew  (Hacksaw Gaming, 2020)

Mechanic: Classic Bonus Buy + Super Bonus
One of Hacksaw’s earliest breakout titles that offered both a standard Bonus Buy and an enhanced “Super Bonus” paving the way for multi-tier buy structures in later hits like Wanted Dead or a Wild.

5. Royal Mint Megaways (Big Time Gaming, 2020)

Mechanic: Heartstopper Enhancements
Like Lil’ Devil, Royal Mint introduced the Heartstopper mechanic, where collecting symbols allowed players to unlock a boosted bonus round. This acted as a bridge between organic bonus triggering and buy-style progression.

6. Sweet Powernudge  (Pragmatic Play, 2022)

Mechanic: Direct Bonus Buy + Powernudge Modifiers
Building on the success of Sweet Bonanza, this title featured purchasable access to its unique Powernudge feature and bonus spins, showing the evolution of Bonus Buys alongside new reel mechanics.

7. Money Train 2 (Relax Gaming, 2020)

Mechanic: Full Bonus Buy Integration
The sequel to the original Money Train became a landmark title for Bonus Buy slots. Its highly volatile bonus game, combined with the instant buy feature, made it one of the most popular slots at non Gamstop casinos.

How Much Do Slots You Can Buy Bonus Cost?

Bonus Buy slots give players the option to pay directly for access to a slot’s bonus round, instead of waiting for the feature to trigger through regular spins. The cost of buying the bonus varies depending on the slot’s volatility, the strength of its bonus mechanics and the maximum win potential built into the game.

In most cases, Bonus Buy prices range between 50x and 200x your stake, though some high-volatility titles offer buy-ins as low as 20x or as high as 500x depending on the version of the bonus you choose.

Below is a breakdown of common Bonus Buy price ranges and what they typically offer.

20x – 75x Your Bet (Entry Level Bonus Buys)

These are the cheapest Bonus Buy options, normally attached to simple free spins or low volatility features. Wins tend to be smaller but appear more frequently, making these bonuses ideal for players who want fast, affordable feature access.

Examples in this range:

• Bison Battle (Push Gaming) – Low-cost free spins with basic modifiers.
• Wild Water (NetEnt) – Entry-level surf-themed feature with expanded symbols.
• Gold Rush Express (Booming Games) – Cheap instant-feature buy with train modifiers.

100x Your Bet (Standard Bonus Buy Level)

The 100x buy price is considered the industry standard, offering access to the slot’s primary bonus round. These features usually provide a medium to high level of volatility, with solid win potential and balanced risk.

Popular examples include:

• Floating Dragon Megaways (Pragmatic Play) – Free spins with fish-collecting mechanics.
• East Coast vs West Coast (NoLimit City) – Sticky features and enhanced symbol spreads.
• Fire Archer (Pragmatic Play) – Expanding arrows and multiplier hits in the bonus game.

150x – 200x Your Bet (High-Volatility Bonus Buys)

Higher priced Bonus Buys often involve super bonuses or advanced versions of the feature, offering significantly bigger win potential. These buys carry much greater risk but unlock the most powerful mechanics in the game, such as fixed multipliers, guaranteed wilds or enhanced reel setups.

Examples in this pricing bracket:

• Folsom Prison (NoLimit City) – Multiple volatile bonus modes including extreme-level buys.
• Outlaw (Big Time Gaming) – High-risk enhanced features with sticky wilds and expanding symbols.
• The Rave (NoLimit City) – Super bonuses with added xWays and xSplit features.

Variable & Multi-Tier Buy Feature Options

Many modern slots now offer several bonus buy tiers, each priced according to volatility. Players can choose anything from a budget friendly mini-feature to an ultra premium super bonus round.

A strong example:

Beast Mode (Relax Gaming)

• 20x Buy: Basic feature with limited modifiers.
• 50x Buy: Enhanced spins with improved bonus potential.
• 100x Buy: Access to the slot’s full-power feature, including high multipliers.
• 250x Super Buy: Guarantees additional modifiers and maximised volatility.

This flexible approach allows every type of player, casual or high roller, to choose the bonus round that suits their budget and preferred risk level.

FAQ’s About Bonus Buy Slots UK

1. What are Bonus Buy slots UK?

Bonus Buy slots UK are online slot games where you can pay a set fee to activate the bonus feature instantly, rather than waiting for scatters to land during normal gameplay. This gives players immediate access to the most exciting part of the game where additional game features come into play and the biggest wins occur.

2. How much does it cost to buy a bonus round?

Pricing varies by game, but most Bonus Buys cost between 50x and 200x your stake. Some slots include multiple buy-in levels, allowing you to choose higher- or lower volatility versions of the feature. A few premium games can charge even more for enhanced or “super bonus” modes.

3. Are Bonus Buy slots available to UK players?

Due to contiguous restrictions imposed by the UKGC, You can now only play slots where you can buy the bonus feature at non UK licensed casinos. 

4. Can I try Bonus Buy slots for free?

Yes. Many slots that include a Bonus Buy feature also come with a demo mode, allowing you to explore how the bonus works without wagering real money. This is ideal for learning the mechanics before making a purchase.

5. Are slots you can buy bonus a good choice?

They can be, but only if you understand the risks. Bonus Buys offer fast access to high-volatility features, meaning you can win large amounts but also lose quickly. Players who enjoy adrenalin filled action and bigger swings often prefer this style of slot.

6. Which developers make the best Bonus Buy slots UK?

Several software providers specialise in high-quality Bonus Buy mechanics, including:

• Pragmatic Play — Known for hits like Sugar Rush and The Dog House Megaways.
• NoLimit City — Famous for extreme volatility games such as Road Rage and Tombstone RIP.
• Relax Gaming — Creators of the Money Train series, which popularised multi-tier bonus buys.

7. Do Buy Feature slots offer better RTP than normal play?

Sometimes. Certain games increase the RTP slightly when the Bonus Buy option is used, since you skip the low-paying base game and go straight to the slot’s premium feature. However, this varies widely between titles, so always check the game information for the exact RTP of both modes.

8. Can I use casino bonuses to buy bonus features?

It depends on the casino. Some new online slot sites allow Bonus Buys to be funded using welcome bonuses, reload offers, or cashback, while others exclude Bonus Buy wagers from contributing to wagering requirements. Always review the bonus terms before playing to avoid surprises.